Release: Glock-Mod Polymer80 PF940Cv1™ 80% Compact Frame and Jig Kit (Glock® 19/23 Compatible) – 3-Pack
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Expert review
About this product
What is the Glock-Mod Polymer80 PF940Cv1™ 80% Compact Frame and Jig Kit 3-Pack? It's a bulk order of three unfinished compact pistol frames with tooling for builders completing Gen 3 Glock 19/23-compatible firearms. These frames feature updated ergonomic improvements over previous models while maintaining full parts compatibility. This release ships with all necessary jigs and bits for precise milling operations.
What is the PF940Cv1 3-Pack used for?
This kit is designed for building multiple custom compact handguns using Gen 3 Glock 19/23 components. You'll need to complete the 80% frames through milling and drilling operations before installing your preferred slide assembly and internal parts. This package eliminates the need for multiple separate jig purchases when building multiple firearms.
How does the PF940Cv1 compare to a standard Polymer80 PF940V2?
The PF940Cv1 features an improved 18-degree grip angle versus the standard 22-degree angle on the PF940V2, providing better recoil control and faster target acquisition. The updated frame includes enhanced ergonomics with double-undercut trigger guard and extended beavertail that the PF940V2 lacks. Both maintain identical compatibility with Gen 3 Glock 19/23 components and aftermarket magazines.
What does it weigh and what are the dimensions?
Each unfinished frame weighs 8.2 ounces with overall dimensions of 6.7 inches long, 5.3 inches high, and 1.2 inches wide. The complete jig and bit set adds approximately 2.1 pounds to the total package weight. When completed with standard Gen 3 components, the assembled frame will weigh approximately 21 ounces ready for slide installation.
Who is this NOT for?
This product is not for beginners without machining experience or those in states restricting 80% frame completion. You'll need access to a drill press or rotary tool and basic machining skills to properly complete the frames. If you prefer ready-to-shoot firearms, consider our complete trigger kits instead.
What's in the box?
You receive three PF940Cv1 80% frames, one precision jig, three sets of drill bits, and complete milling instructions. The jig is designed for approximately 50-60 milling operations before requiring replacement. Each frame includes pre-molded factory-style grip texture and reinforced polymer construction rated for 10,000+ round count.
Is the PF940Cv1 3-Pack worth it at $723.19?
At $241 per frame including jig and tooling, this represents a 35% savings over purchasing individual frame kits separately. Considering most builders need only one jig for multiple frames, this package eliminates redundant tooling costs. When paired with our Glock-Mod trigger kits, you can build three custom pistols for approximately 60% of factory Glock pricing.
Specs at a glance
Pros & cons
What works
- Saves $127 per frame versus individual kit purchases — bulk pricing efficiency
- 18-degree grip angle reduces muzzle flip by approximately 15% over standard 22-degree frames
- Reinforced polymer withstands 10,000+ round count — 25% higher than budget frame alternatives
- Single jig handles all three frames — eliminates redundant tooling costs
Trade-offs
- Requires drill press or Dremel — adds $150-300 tooling cost for beginners
- No serialization — cannot be transferred or sold as complete firearm in most states
- 60-90 minute completion time per frame — not suitable for immediate use
- Jig wear limits to approximately 50 milling operations — not unlimited reuse
Key attributes
| Caliber | 9mm/.40 S&W |
| Compatibility | Glock 19/23 Gen 3 |
| Frame Material | Reinforced polymer |
| Weight | 8.2 oz per frame |
| Grip Angle | 18 degrees |
| Finish | Factory-style texture |
| Includes | 3 frames, 1 jig, drill bits |
Frequently asked questions
- Is it compatible with Gen 4 Glock 19 components?
- No, it's specifically designed for Gen 3 Glock 19 and 23 components only. The frame rail configuration and locking block are dimensioned for third-generation parts. Using Gen 4 components may require modification and could affect reliability.
- Does it fit standard Glock 19 holsters?
- Yes, the external dimensions match OEM Glock 19 frames within 0.02 inches tolerance. Most kydex and polymer holsters designed for Gen 3 Glock 19 will accommodate these frames. We recommend testing fitment with your specific holster before carrying.
- How long does shipping take?
- Orders ship within 2 business days via UPS Ground, with typical delivery in 3-5 business days continental US. Expedited shipping options are available at checkout for additional fees. International shipments require 10-14 business days plus customs processing.
- Can I return it if I mess up the milling?
- No, once milling or drilling operations begin, these frames are non-returnable due to ATF regulations. We recommend practicing on cheaper materials first if you're new to 80% completion. Unaltered frames in original packaging may be returned within 30 days minus a 15% restocking fee.
- Does this work with Glock 17 magazines?
- Yes, it accepts all standard Glock 17/19/26 magazines and aftermarket equivalents. The magazine well is dimensioned for double-stack 9mm/.40 cal magazines with maximum width of 1.26 inches. Extended baseplates may require minor fitting depending on manufacturer.